# 久安洞察 vs Erosion 蚀

The clearest difference is update cadence: Erosion 蚀 at fortnightly against 久安洞察's monthly. 久安洞察's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

久安洞察 ships an update monthly, Erosion 蚀 fortnightly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 久安洞察 | Erosion 蚀 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Size | 30 MB | 1 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [成都松球互娱科技有限公司](https://appshunter.io/developer/1483297216) | [名哲 张](https://appshunter.io/developer/1879661087) |

## What reviewers say

### 久安洞察

[App page](https://appshunter.io/ios/app/id6740556970)

**In-app purchases:** none


### Erosion 蚀

[App page](https://appshunter.io/ios/app/erosion/id6761682068)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 久安洞察 free?

久安洞察 is free to download, with no in-app purchases.

### Is Erosion 蚀 free?

Erosion 蚀 is free to download, with no in-app purchases.

### Do 久安洞察 or Erosion 蚀 have ads?

Neither 久安洞察 nor Erosion 蚀 shows ads.

### Which is updated more often, 久安洞察 or Erosion 蚀?

久安洞察 ships an update monthly, and Erosion 蚀 fortnightly. Most recently, 久安洞察 was updated on October 28, 2026 and Erosion 蚀 on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*